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Finding the Fourth Proportional to 887,695.72, 1,331,553.30 and 256,615

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Solution

The fourth proportional to 887,695.72, 1,331,553.30 and 256,615 is: 384,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,695.72 : 1,331,553.30 = 256,615 : x
  2. Step 2: Convert to fraction form
    887,695.72/1,331,553.30 = 256,615/x
  3. Step 3: Cross multiply
    887,695.72x = 1,331,553.30 × 256,615
  4. Step 4: Simplify right side
    887,695.72x = 341,696,550,079.50
  5. Step 5: Solve for x
    x = 341,696,550,079.50/887,695.72
  6. Step 6: Final answer
    x = 384,925.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.